National Highways has advised of two weekend closures, that are part of the M25 junction 10 project, taking place during May:
Slip road closures – 9 to 12 May 2025
It will be closing the closing the northbound A3 exit slip road, and the clockwise (westbound) M25 entry slip road. During this time, drivers won’t be able to leave the northbound A3 or enter the clockwise (westbound) M25 entry at junction 10.
This closure will take place from:
- 9pm on Friday 9 May to 6am Monday 12 May 2025.
Junction 10 closure – 16 to19 May 2025
The Wisley interchange junction 10, including all entry and exit slip roads, will be closed in its entirety from:
- 9pm on Friday 16 May to 6am Monday 19 May 2025.
While the A3 and M25 will both remain open, the slip roads off and on the junction won’t be, meaning drivers won’t be able to leave or join the M25 or the A3 at junction 10.
This is the scheme’s final planned full weekend closure and is for the final resurfacing work on the gyratory. The gyratory is due for completion by the end of summer this year.
More information and diversions: M25 junction 10 - National Highways.
